一中低功耗的FFT設計的結構概述，采用SDF結構，以及對ROM的簡化，使得達到低功耗的目的
標簽： low-power processor pipeline FFT
上傳時間： 2018-03-26
上傳用戶：lpyaking
CFFT是一個數據寬度和點數都可配置的基4 FFT core，由于旋轉因子是用CORDIC算法實現的，因此經過FFT后信號的增益和標準的FFT算法不同。
標簽： processor complex radix CFFT new fft
上傳時間： 2018-03-29
上傳用戶：lpyaking
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
標簽： frequency-domain interpolation performance Design kbit_s speech coder based and of
上傳時間： 2018-04-08
上傳用戶：kilohorse
Many good textbooks exist on probability and random processes written at the under- graduate level to the research level. However, there is no one handy and ready book that explains most of the essential topics, such as random variables and most of their frequently used discrete and continuous probability distribution functions; moments, transformation, and convergences of random variables; characteristic and generating functions; estimation theory and the associated orthogonality principle; vector random variables; random processes and their autocovariance and cross-covariance functions; sta- tionarity concepts; and random processes through linear systems and the associated Wiener and Kalman filters.
標簽： Probability Processes Random and
上傳時間： 2020-05-31
上傳用戶：shancjb
This reference design describes the design of a 3-phase AC induction vector control drive with position encoder coupled to the motor shaft. It is based on Motorola’s DSP56F805 dedicated motor control device. AC induction motors, which contain a cage, are very popular in variable speed drives. They are simple, rugged, inexpensive and available at all power ratings. Progress in the field of power electronics and microelectronics enables the application of induction motors for high-performance drives, where traditionally only DC motors were applied. Thanks to sophisticated control methods, AC induction drives offer the same control capabilities as high performance four-quadrant DC drives.
標簽： Reference Designer Manual Phase DRM 023 AC
上傳時間： 2020-06-10
上傳用戶：shancjb
General paradigm in solving a computer vision problem is to represent a raw image using a more informative vector called feature vector and train a classifier on top of feature vectors collected from training set. From classification perspective, there are several off-the-shelf methods such as gradient boosting, random forest and support vector machines that are able to accurately model nonlinear decision boundaries. Hence, solving a computer vision problem mainly depends on the feature extraction algorithm
標簽： Convolutional Networks Neural Guide to
上傳時間： 2020-06-10
上傳用戶：shancjb
RT1060硬件開發指南，Hardware Development Guide for the MIMXRT1050MIMXRT1060 Processor
上傳時間： 2020-10-21
上傳用戶：
This programming manual provides information for application and system-level softwaredevelopers. It gives a full description of the STM32F3 and STM32F4 Series Cortex?-M4processor programming model, instruction set and core peripherals.
標簽： stm32f7
上傳時間： 2021-12-02
上傳用戶：
進入21世紀之后，數字化浪潮正在席卷全球，數字信號處理器DSP（Digital Signal Processor）正是這場數字化革命的核心，無論在其應用的廣度還是深度方面，都在以前所未有的速度向前發展。本章主要對數字信號處理進行簡要介紹。 首先對數字信號處理進行了概述，介紹了DSP的基本知識；接著介紹了可編程DSP芯片，對DSP芯片的發展、特點、分類、應用和發展趨勢作了論述；然后介紹DSP系統，對DSP系統的構成、特點、設計過程以及芯片的選擇進行了詳細的介紹；最后對DSP產品作了簡要介紹。
標簽： dsp
上傳時間： 2022-01-23
上傳用戶：
高通藍牙芯片QCC5051詳細規格書共有117頁，開發人員必備手冊 支持藍牙標準 5.2 ->Quad-core processor architecture ->High-performance programmable Bluetooth stereo audio Soc ->Low power modes to extend battery life. ->Flexible flash programmable platform. ->For wired/wirelss stereo heradsets/headphones application. ->For Qualcomm TrueWirless stereo earbuds application.主要特點如下
上傳時間： 2022-01-24
上傳用戶：shjgzh
